<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        body{
            position: relative;
            background-color: lightgray;
        }
        body::before{
            content:"";
            position: absolute;
            top: -6px;
            left: 680px;

            width: 70px;
            height: 10px;
            background-color: #2E2E2E;
          
        }
        body::after{
            content:"";
            position: absolute;
            top: 100px;
            left: 510px;

            width: 10px;
            height: 50px;
            background-color: #2E2E2E;
           
        }
        .iphone {
            position: relative;
            width: 300px;
            height: 600px;
            margin: 70px auto;
            background-color: #2e2e2e;
            border-radius: 50px;
            border: 10px solid  #3b3b3b;
            box-sizing: border-box;
        }
        .iphone::before{
            content:"";
            position: absolute;
            top: 30px;
            left: 50%;
            margin-left: -15px;
            width: 8px;
            height: 8px;
            background-color: black;
            border-radius: 50%;
            border: 3px solid  #3b3b3b;
        }
        .iphone::after{
            content:"";
            position: absolute;
            top: 50px;
            left: 50%;
            margin-left: -40px;
            width: 60px;
            height: 6px;
            background-color: black;
            border-radius:10px;
            border: 5px solid  #3b3b3b;
        }
        .screen{
            position: absolute;
            top: 80px;
            left: 15px;
            width: 250px;
            height: 450px;
            background-color: #0a0a0a;
            text-align: center;
            font-size: 35px;
            line-height: 250px;
            color: white;
            border: 5px solid #1A1A1A;
            box-sizing: border-box;
            box-shadow: 1px 1px 2px rgba(0,0,0,.3);
        }
        .screen::before{
          content:"";
          position: absolute;
          top: 450px;
          left: 95px;
          width: 40px;
          height: 40px;
          border-radius: 50%;
          background-color: #1A1A1A;
          
        }
        .screen::after{
            content: "";
            width: 15px;
            height: 15px;
            position: absolute;
            top: 460px;
            left: 105px;
            border: 3px solid #BBB;
            border-radius: 5px;

        }
    </style>
</head>
<body>
    <div class="iphone">
        <div class="screen">iphoneXX</div>

    </div>
</body>
</html>